StockX Denies Nike’s Accusations of Selling Counterfeit Shoes

Sneaker marketplace StockX LLC denied Nike Inc.’s accusation that it is selling counterfeit shoes, saying the platform has one of the strongest authentication processes in the industry and has devoted millions of dollars to battle the spread of fake products.

The world’s largest sneaker maker claimed in a February lawsuit that StockX is infringing trademarks through a service called Vault NFTS. Nike escalated the battle last month, saying it has purchased counterfeit shoes on the site despite promises that everything sold on the platform is authentic.

StockX fired back on Monday. In a court filing, the company said its ...